Description:Featuring the "Y" clamp deck, the Focusecig Wanko 17 is able to use the special wave coil, which makes the atomizer postless and screwless. The 1 ohm Kanthal A1 coil, 0.6 ohm SS316L coil and the 0.35 ohm Clapton coil will give you different vaping experience. Besides, the adjustable 14 airflow holes ( 7 for each side ) located on the side of the tank can provide you with massive cloud and good taste.